AirDroid Premium account can provide more features and a better experience.
Remote data quota
Free account: 200MB of remote data quota monthly. When used up the quota, free account may can't use AirDroid in remote mode.
Premium account: No upper limit for premium account, and you can use all AirDroid remote services freely.
Upgrade devices quota
Free account: Up to 2 devices can be connected.
Premium accounts: Support upgrade devices quota. It's allowed connect to 10 devices for AirDroid Personal.
Premium account can transfer folders in local mode (Only support from PC to phone).
Fresh interface with no AD
After upgrade to Premium, you won't see any AD.
Larger offline file size
Free account: When use files for offline transfer, a single file can support up to 30MB.
Premium accounts: When use PC client to transfer files offline, a single file supports a maximum of 1 GB.
More remote features available
Premium accounts can enjoy exclusive remote features. E.g:
Turn on the device camera remotely and use the device as a monitor.
Advanced features of "Find Phone" and retrieve lost phones at any time.
Disable connection alerts on phone
Upgrade to Premium, you can turn off the pop up notification.
From now on, upgrade to AirDroid Premium to enjoy all the Premium features, Get Premium Here.